set terminal png
set output "heatmap.png"
set size ratio 0.5
set title "USD/CHF: PnL following daily trend, in pips"

set xlabel "SL/TP - 200"
set ylabel "Days since 2007-01-01"

set tic scale 0

set palette rgbformulae 22,13,10
#set palette negative

set cbrange [0:10]
#unset cbtics

set xrange [0:4]
set yrange [0:4]

set view map

#splot 'map.txt' matrix with image
splot 'map.txt' using 2:1:3 with image